The diagram below shows various events during | vedclass

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(A) In the menstrual cycle, the levels of hormones fluctuate as follows:$1$. $FSH$ (Follicle Stimulating Hormone) rises during the follicular phase to

Vedclass · Accepted Answer

$LH, FSH, 	ext{Estrogen}, 	ext{Progesterone}$

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(A) In the menstrual cycle, the levels of hormones fluctuate as follows:$1$. $FSH$ (Follicle Stimulating Hormone) rises during the follicular phase to stimulate follicle development.$2$. $LH$ (Luteinizing Hormone) shows a sharp peak ($LH$ surge) just before ovulation (around day $14$).$3$. $	ext{Estrogen}$ levels rise during the follicular phase, peaking just before ovulation.$4$. $	ext{Progesterone}$ levels rise significantly during the luteal phase (after ovulation) to maintain the endometrium.Based on standard physiological graphs of the menstrual cycle, $P$ represents $LH$ (due to the sharp mid-cycle peak), $Q$ represents $FSH$, $R$ represents $	ext{Estrogen}$, and $S$ represents $	ext{Progesterone}$.

The diagram below shows various events during the menstrual cycle. Identify the hormones $P, Q, R,$ and $S$.

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